2022年英语专四语法模拟练习题第85期
华宇在线专四专八频道给大家整理的相关内容，希望能够对大家的专四专八考试备考有所帮助，更多有关专四专八的备考内容，欢迎随时关注华宇在线专四专八频道。
1.___ has been known for about a hundred years, its commercial development has taken place since the beginning of the century.
A.Which
B.While
C.That
D.As
2.The elderly man who is moving the lawn is ___ the ,mayor himself.
A.no other but
B.no other than
C.no one than
D.none other than
3.To succeed on a scientific research project, ___.
A.one needs to be persistent
B.persistence is needed
C.one needs be a persistent person
D.persistence is one needs
4.Man has used metals for centuries in gradually increasing quantities but it was ___ the Industrial Revolution that they came to be employed in really vast quantities.
A.till
B.until
C.not until
D.not till
5.Peter has just arrived, but he talks as if he ___ everything here.
A.will know
B.has know
C.knew
D.know
以上就是华宇在线专四专八频道给大家整理的相关内容，希望对大家有所帮助，更多备考内容，欢迎随时关注华宇在线专四专八频道。